Figure 3-1.Summary of effective allowance parts/equipage lists (SOEAPL).Description of COSAL Parts and SectionsSince the COSAL and COSBAL are similar, we willdescribe just the COSAL parts and sections. Certainaviation components (aviation supply offices [ASOs])will also be included in the COSAL when specificallydesignated. For more information and completeinstructions in the use of the COSAL, we recommendthat you read the COSAL Use and Maintenance Manual,SPCCINST 4441.170.Each COSAL publication is produced in three parts.Part I contains indexes. Part II contains associated APLsand AELs. Part III contains allowances and cross-reference data. The three parts are subdivided as follows:Part ISummary of Effective Allowance Parts/EquipageLists (SOEAPL)IndexSection A (Equipment NomenclatureSequence)Index-Sections B, C, D, and EPart IISection AAllowance Parts Lists (APLs)Section BCircuit Symbol Data (microfiche only)Section CAllowance Equipage Lists (AEL)Part IIISection A-Storeroom Items (SRI)Stock Number Sequence List (SNSL)Section B-Operating Space Items (OSI)Stock Number Sequence List (SNSL)Section CFMaintenance Assistance Module(MAM)Section CRReady Service Spares (RSS)Section DAlternate Number Cross-Reference toStock NumberSection EGeneral Use Consumables List (GUCL)Section FForms and PublicationsThe following paragraphs provide a briefdescription of the parts of the COSAL listed above:PART I-SUMMARY. The Summary of EffectiveAllowance Parts/Equipage Lists (SOEAPL) is anumerical listing of all APLs and AELs used todetermine how many of each part is listed on the stocknumber sequence list (SNSL). Figure 3-1 is an exampleof a summary page, with a description of the informationit contains.3-3